According to the Bohr model of an atom, what happens when an electron moves from the second energy level to the third energy level and then back to the second energy level?

1 Answer
Gió
May 4, 2017

The electron absorbs a quantum of energy and moves to the third energy level; going back to the second it releases the energy in form of a photon carrying the energy #E=hf#.

Explanation:

Your transition should be located in the so called Balmer Series:
phys.libretexts.org
in emission there should be a photon in the visible at #656nm# (red):

intro.chem.okstate.edu

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